Show HN: Perfect your presentation with a panel of AI reviewers (review.thorntale.com)

A new web tool showcased on Hacker News lets presenters upload a PDF of their slide deck, record their delivery, and receive instant, actionable feedback from a "panel" of AI reviewers. The promise: combine slide analysis and speech critique in one workflow so users can iterate on slide design, wording, pacing, and delivery without a human coach. The site offers sample decks for testing and emphasizes quick, practical suggestions rather than long reports. For the AI/ML community this is notable because it packages several multimodal capabilities—slide parsing (layout, visuals, and text), speech-to-text transcription, prosody and filler-word detection, and natural-language feedback—into a consumer-facing product. The “panel” approach suggests ensemble or role-based reviewers (e.g., content expert, design critic, audience coach) to surface diverse perspectives, which can improve robustness and usefulness of recommendations. Technical implications include challenges around slide-image OCR, alignment of slide content with recorded narration, evaluation metrics for clarity and engagement, latency and compute trade-offs, and privacy/security of uploaded presentations. The tool highlights practical applications of multimodal ML while raising important questions about bias, explainability, and data governance for real-world deployment.